Replaces: 32-8066362 Fits: 262 Mag EFI ( Gen+) (1996-97), 4.3L (Gen+) (1998-07) (S/N 0L01004-0L618999), 4.3L EFI (Gen+) (1998-00), 4.3LH (Gen+) 1998-00), 4.3LX (Gen+) (1996-97), 4.3LXH (Gen +) (1996-97) For: Thermostat housing to starboard manifold with 2 piece exhaust manifold